list = ["boy","apple","elephant","cell","dog"]
list.reverse()
print(list)
list.reverse()
print(list)

list.sort()
print(list)
list.sort(reverse=True)
print(list)

list = ["boy","apple","elephant","cell","dog"]
print('sorted that sort the list whithout effect the origin element:')
print(list)
print(sorted(list))
print(sorted(list,reverse=True))
print(list)

print(len(list))

places = ["boy","apple","elephant","cell","dog"]
list.reverse()
print(places)
print(sorted(places))
print(places)
places.reverse()
print(places)
places.reverse()
print(places)
places.sort()
print(places)
places.sort(reverse=True)
print(places)

print(places[-1])